Indeed

Vine's Expository Dictionary of NT Words

1: Μέν (Strong'S #3303 — particle — men — men )

a conjunctive particle (originally a form of men, "verily, truly," found in  Hebrews 6:14 ), usually related to an adversative conjunction or particle, like de, in the following clause, which is placed in opposition to it. Frequently it is untranslatable; sometimes it is rendered "indeed," e.g.,  Matthew 3:11;  13:32;  17:11 , RV (AV, "truly");  Matthew 20:23;  26:41; (some mss. have it in  Mark 1:8 );  Mark 9:12 , RV (AV, "verily").

2: Ἀληθής (Strong'S #227 — Adjective — alethes — al-ay-thace' )

"true," is rendered "indeed" in  John 6:55 (twice), see RV marg.; some mss. have No. 3 here.

3: Ἀληθῶς (Strong'S #230 — Adverb — alethos — al-ay-thoce' )

"truly" (from No. 2), is translated "indeed" in  John 1:47;  4:42;  8:31 .

4: Ὄντως (Strong'S #3689 — Adverb — ontos — on'-toce )

an adverb from on, the present participle of eimi, "to be," denotes "really, actually;" it is translated "indeed" in  Mark 11:32 (RV, "verily");   Luke 24:34;  John 8:36;  1—Corinthians 14:25 , RV (AV "of a truth");  1—Timothy 5:3,5,16;  6:15 , RV, where some mss. have aionios, "eternal" (AV); in  Galatians 3:21 , "verily."

5: Καί (Strong'S #2532 1063 — Conjunction — kai gar — kahee )

signifies "and in fact," "for also" (kai, "and," or "even," or "also;" gar, "for;" gar always comes after the first word in the sentence); it is translated "For indeed" in the RV of  Acts 19:40;  2—Corinthians 5:4;  1—Thessalonians 4:10 (AV, "and indeed"); AV and RV in   Philippians 2:27 . This phrase has a confirmatory sense, rather than a modifying effect, e.g,  Matthew 15:27 , RV, "for even," instead of the AV "yet;" the woman confirms that her own position as a Gentile "dog" brings privilege, "for indeed the dogs, etc."

6: Οὐδέ (Strong'S #3761 1063 — Conjunction — oude gar — oo-deh' )

"for neither," is rendered "neither indeed" in  Romans 8:7 .

7: Ἀλλά (Strong'S #235 2532 — Conjunction — alla kai — al-lah' )

"but even," or "but also," is rendered "nay indeed" in  2—Corinthians 11:1 , RV (AV, "and indeed." RV marg., "but indeed").

8: Καί (Strong'S #2532 — Conjunction — kai — kahee )

preceded by the particle ge, "at least, ever," is rendered "indeed" in  Galatians 3:4 , RV (AV, "yet"). Kai alone is rendered "indeed" in  Philippians 4:10 , RV (AV, "also").

9: Εἰ Μήτι (Strong'S #1509 — Conjunction — ei meti — i may tee )

"if not indeed," is rendered "unless indeed" in  2—Corinthians 13:5 , RV (AV, "except").

King James Dictionary

INDEE'D, adv. in and deed. In reality in truth in fact.

The carnal mind is enmity against God for it is not subject to the law of God, neither indeed can be.  Romans 8

Indeed is usually emphatical, but in some cases more so than in others as,this is true it is indeed.

I were a beast indeed to do you wrong.

Some sons indeed some very few we see,

Who keep themselves from this infection free.

There is indeed no greater pleasure in visiting these magazines of war--

It is used to note concession or admission as, ships not so large indeed, but better manned.

Indeed is used as an expression of surprise, or for the purpose of obtaining confirmation of a fact stated. Indeed! is it possible? is it so in fact?

Webster's Dictionary

(adv.) In reality; in truth; in fact; verily; truly; - used in a variety of sense. Esp.: (a) Denoting emphasis; as, indeed it is so. (b) Denoting concession or admission; as, indeed, you are right. (c) Denoting surprise; as, indeed, is it you? Its meaning is not intrinsic or fixed, but depends largely on the form of expression which it accompanies.